National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

Lat: 40.09°NLon: 105.92°WElev: 8207ft.

Light Snow

29°F

-2°C

Humidity 83%
Wind Speed W 17 G 31 mph
Barometer 29.76 in
Dewpoint 25°F (-4°C)
Visibility 2.50 mi
Wind Chill17°F (-8°C)
Last update 6 Dec 4:55 am MST
Extended Forecast for

3 Miles WSW East Portal CO

Winter Storm Warning December 6, 05:18am until December 6, 11:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning December 6, 05:18am until December 6, 11:00pm

    NOW until 11:00pm Sat

    Winter Storm Warning

  • Overnight

    Low: 16 °F

    Heavy Snow
    and Blowing
    Snow

  • Saturday

    Saturday: Snow. The snow could be heavy at times. Widespread blowing snow. Temperature falling to around 9 by 5pm. Wind chill values as low as -15. Very windy, with a west northwest wind 33 to 37 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    High: 16 °F⇓

    Heavy Snow
    and Blowing
    Snow

  • Saturday Night

    Saturday Night: Snow. Widespread blowing snow, mainly after 5am. Low around 4. Wind chill values as low as -16. Windy, with a west wind 23 to 32 mph, with gusts as high as 48 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 4 °F

    Snow and
    Blowing Snow

  • Sunday

    Sunday: A 50 percent chance of snow, mainly before 11am. Widespread blowing snow, mainly between 10am and 11am. Partly sunny and cold, with a high near 10. Wind chill values as low as -18. Breezy, with a west wind 21 to 23 mph, with gusts as high as 39 mph. New snow accumulation of less than one inch possible.

    High: 10 °F

    Chance Snow
    and Blowing
    Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow after 11pm. Partly cloudy, with a low around 6. Windy, with a west wind 22 to 26 mph, with gusts as high as 38 mph.

    Low: 6 °F

    Slight Chance
    Snow and
    Windy

  • Monday

    Monday: A 50 percent chance of snow. Partly sunny, with a high near 14. Windy.

    High: 14 °F

    Chance Snow
    and Windy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 12. Windy.

    Low: 12 °F

    Mostly Cloudy
    and Windy

  • Tuesday

    Tuesday: A chance of snow, mainly after 11am. Mostly cloudy, with a high near 23. Windy.

    High: 23 °F

    Chance Snow
    and Windy

Detailed Forecast

Overnight
Snow. The snow could be heavy at times. Widespread blowing snow. Steady temperature around 16. Wind chill values as low as -6. Very windy, with a west wind around 40 mph, with gusts as high as 60 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 3 to 5 inches possible.
Saturday
Snow. The snow could be heavy at times. Widespread blowing snow. Temperature falling to around 9 by 5pm. Wind chill values as low as -15. Very windy, with a west northwest wind 33 to 37 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Saturday Night
Snow. Widespread blowing snow, mainly after 5am. Low around 4. Wind chill values as low as -16. Windy, with a west wind 23 to 32 mph, with gusts as high as 48 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Sunday
A 50 percent chance of snow, mainly before 11am. Widespread blowing snow, mainly between 10am and 11am. Partly sunny and cold, with a high near 10. Wind chill values as low as -18. Breezy, with a west wind 21 to 23 mph, with gusts as high as 39 mph. New snow accumulation of less than one inch possible.
Sunday Night
A 20 percent chance of snow after 11pm. Partly cloudy, with a low around 6. Windy, with a west wind 22 to 26 mph, with gusts as high as 38 mph.
Monday
A 50 percent chance of snow. Partly sunny, with a high near 14. Windy.
Monday Night
Mostly cloudy, with a low around 12. Windy.
Tuesday
A chance of snow, mainly after 11am. Mostly cloudy, with a high near 23. Windy.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 20. Windy.
Wednesday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 26. Windy.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 20. Windy.
Thursday
A chance of snow. Partly sunny, with a high near 23. Windy.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 18. Windy.
Friday
A slight chance of snow. Partly sunny, with a high near 23. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW East Portal CO
 39.89°N 105.7°W (Elev. 11722 ft)
Last Update:
4:12 am MST Dec 6, 2025
Forecast Valid:
5am MST Dec 6, 2025-6pm MST Dec 12, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation